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arXiv physics/0607171physics.optics
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含左手材料的一维光子晶体中的Tamm态

Tamm states in one dimensional photonic crystals containing left-handed materials

Abdolrahman Namdar

摘要:

本文研究了由左手材料和右手材料交替构成的半无限一维光子晶体与均匀介质的界面处的电磁表面波,称之为左手光子晶体.我们发现了一种新型的表面模式的结构,即所谓的表面Tamm态,并证明了在光子晶体结构中的超材料的存在允许灵活地控制表面态的色散特性,并且可以支持具有反向能量流和涡旋状结构的Tamm态。

英文摘要:

We present a theoretical study of electromagnetic surface waves localized at an interface separating a conventional uniform medium and a semi-infinite 1-D photonic crystal made of alternate left-handed metamaterial and right-handed material which we refer to as left-handed photonic crystal. We find novel type of surface mode's structure, the so-called surface Tamm states and demonstrate that the presence of metamaterial in the photonic crystal structure allows for a flexible control of the dispersion properties of surface states, and can support the Tamm states with a backward energy flow and a vortex-like structure.

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